催化燃烧式LNG传感器自校准技术的研究  

Research on self-calibration technique of catalytic combustible LNG sensor

作　　者：丁喜波[1,2] 郭如健[2] 岳乐鹏[2] 王战锋[2] 

机构地区：[1]哈尔滨工业大学空间光学工程研究中心,黑龙江哈尔滨150001 [2]哈尔滨理工大学测控技术与通信工程学院,黑龙江哈尔滨150080

出　　处：《传感器与微系统》2009年第8期18-19,23,共3页Transducer and Microsystem Technologies

基　　金：国家"863"计划资助项目(2006AA040601)

摘　　要：为了提高催化燃烧式LNG传感器的测量精度和传感器工作寿命与稳定性,研发了新型的恒温检测电路,并在此基础之上进行了零点漂移和灵敏度自动校准技术的理论分析和实验研究。实验数据表明:该技术有效地解决了该类传感器长期存在的零点漂移与灵敏度下降的问题,为设计具有自动校准功能的可燃气体变送器提供了依据。In order to improve the problem of precision of the circuit catalytic combustible LNG sensor and the working life and stability of gas sensor, a new constant temperature detecting circuit is developed. Theoretical analysis and experimental research of self-calibration technique of zero drift and sensitivity are done based on this circuit. Experimental data show this technique can be used to solve the zero drift and sensitivity attennation of the sensor, and scientific basis is provided for the design of combustible gas detector with self-calibration technique.

关 键 词：液化天然气 传感器 自动校准 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]